POLYESTER-21 is graded A (Safe) by Expert·ING, based on COSING regulatory data.
POLYESTER-21
Safety grade: A
Polyester-21 is a synthetic polymer that forms a lightweight, flexible film on the skin. It's a lab-created ingredient designed to improve how cosmetic products feel and perform.
This ingredient conditions and softens the skin by creating a smooth, comfortable coating that helps lock in moisture and improves the overall texture and feel of skincare products.
Graded using: COSING.
Last verified: May 26, 2026
Other Skin Conditioning ingredients
- TOCOPHEROL — Grade A
- PROPYLENE GLYCOL — Grade A**
- XANTHAN GUM — Grade A
- DIMETHICONE — Grade A
- TOCOPHERYL ACETATE — Grade A
- PANTHENOL — Grade A
- CAPRYLYL GLYCOL — Grade A
- ETHYLHEXYLGLYCERIN — Grade A